Nut-lock.



PATENTED DEC. 24; 1907. v

No. 874,760. J. H. :GLOSAP,

NUT LOCK.

APPLICATION FILED no.3. 1906.

firm m s JOHN H. GLOSAP, OF NOTTAWA, MICHIGAN.

NUT-LOCK.

Specification of Letters Patent.

Patented Dec. 24, 1907.

Application filed December 3, 1906- $erial No. 346,105.

T 0 all whom it "may concern:

Be it known that I, JOHN H. GLosAP, a citizen of the United States,residing at Nottawa, in the county of St. Joseph, State of Michigan,have invented certain new and useful Improvements in Nut-Locks; and I dohereby declare the following to be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art towhichit appertains to make and use the same.

This invention relates to nut locks, and more particularly to that classwhich comprise a grooved bolt, a washer having a tongue adapted to enterthe groove in the bolt and provided with a circular series of openings,and a nut having a spring-pressed pin adapted for interchangeableengagement in the openings in the washer, and the object of theinvention is to provide a device of this class which is adaptable foruse upon any threaded bolt or rod regardless of the connection in whichthe bolt is used. Many such devices are only adapted for use in theconstruction of railroad tracks and are not fitted for use elsewhere butthe. lock disclosed by me may not only be used in this connection butmay be further used on coupling rods for engines, and where it may berequired that the nut shall remain in the position to which it is turnedor adjusted-that is, to be neither tightened nor loosened.

The construction of the locking pin of my device is such that a pair ofordinary pincers may be utilized to withdraw the pin from lookingengagement with the washer and move it into such position that it may bereleased.

To accomplish the above stated result, the

pin has its upper end portion bent over in the arc of a circle and hasthe extreme end of its bent over portion normally seated in a smallrecess in the outer face of the nut. The said outer face of the nut isrounded at each side and hence the pin may be withdrawn sufficiently tocause its said bent over end to rest upon the outer face of the nut andthen twisted to cause it to ride upon the curved portion of the face.The bowed or turned-over portion of the pin, even when the pin isin-locking position, is in spaced relation with the outer face of thenut and hence any small sharp-pointed tool may be inserted between thebowed portion of the pin and the nut to partially withdraw the same orthe said bowed portion may be gripped by a pair of pincers and afterbeing slightly withdrawn, turned by them until the pin is entirelyunseated.

In the accompanying drawings: Figure 1 is a side elevation of thedevice. similar view, the pin being shown turned to cause completedisengagement from the washer, and Fig. 3 is a detailed verticallongitudinal sectional view through the bolt, nut, and washer.

Referring more specifically to the drawings, there is shown a bolt 5which is provided with a longitudinally extending groove 6. A washer 7is engaged upon the bolt and is provided upon its inner periphery withan inwardly projecting tongue 8 which extends into the groove 6 and thewasher is also provided with a circular series of openings 9.

Engaged upon the bolt 5 is a nut 10 and this nut is provided with amajor bore 11 and a minor bore 12. Slidably engaged in the minor bore 12is a pin 13 and this pin is provided intermediate its ends with a collar14 which fits snugly within the major bore 11 and between which and theend wall of the said bore and upon the pin 13 is disposed a helicalspring 15 which normally tends to force that portion of the pin 13 whichlies beyond the collar 14, into one of the-openings 9 in the washer 7.The opposite end portion of the pin extends beyond the outer face of thenut and is bent upon itself in the arc of a circle as at 16, the extremeend of the bent over portion being normally seated in a recess 17 formedin the said outer face of the nut. The bight portion of the pin being atall times in spaced relation with the outer face of the nut as will bereadily seen in Figs. 1 and 3 of the drawings, any small sharppointedtool may be engaged with the bight portion to withdraw the pin fromengagement with the opening in the washer and with the recess in thenut. After this is done the pin is turned and the extreme end of itsbent over portion will ride upon the outer face of the nut, the saidouter face of the nut being slightly convexed for this purpose. It willbe readily understood that the pin will be held in this engaged positionafter being so turned and that the nut may then be quickly and readilyremoved from the bolt.

What is claimed is A device of the class described comprising a bolt, awasher locked to the bolt against rotation with respect thereto, butmovable longitudinally thereon, said washer being pro- Fig. 2 is avidedwith a plurality of openings, a nut engaged upon the bolt, said nutbeing provided with a bore adapted to register with the openings in thewasher, the nut being provided with a conVeXed outer face through whichthe bore opens, a pin slidably seated in the bore in the nut and adaptedfor the engage-.

ment of one of its ends interchangeably in the openings in the washer, acollar on said pin adapted to contact with the washer, and a springengaged upon the pin and bearing at one of its ends against the collarand at its other end against a shoulder formed by reducing the bore, theopposite end of the pin being bent over upon itself, there being a 15seat formed in the nut for the reception of the end of the bent overportion of the pin when the same is in engagement with the openings inthe washer, and the pin being maintained against other than vertical androtary movements in the holes in the nut and washer.

In testimony whereof, I affix mysignature, in presence of two witnesses.

JOHN i-I. GLOSAP.

lVitnesses:

W. T. THOMAS, M. C. RIDER.

